Drug Mixing and Delivery Device

Abstract

A medicine mixer for applying drug comprises a menstruum vial ( 12 ), an outer cannula ( 2 ) and a solute vial ( 11 ) (powdered drug ampoule) which are in one. Retaining ring ( 1 ), chuck ring ( 4 ) and convex ring ( 8 ) are disposed respectively at up portion, middle portion and nether portion of the inner wall of the outer cannula ( 2 ). An inner cannula ( 5 ) with a ducting needle ( 3 ) is disposed between the chuck ring ( 4 ) and the convex ring ( 8 ). In use the lower end of the outer cannula ( 2 ) is inserted to the opening ( 14 ) of the solute vial ( 11 ), and the opening ( 13 ) of the menstruum vial ( 12 ) is inserted into the retaining ring ( 1 ) of the outer cannula ( 2 ), so that rubber plugs ( 10,9 ) are pierced successively by the ducting needle ( 3 ) to connect two vials and thus mix drug. Then the outer cannula ( 2 ) is unfixed and the drug is applied to an infusion bottle ( 15 ). A medicine mixer for applying drug which can be repositioned automatically and a medicine mixer for applying drug which can delivery drug to many ampoules are also provided. The structure of the device is simple and cost is low. It is suitable to be combined with commercial ampoules. It is used conveniently and simply, and applied broadly.

1 - 33 . (canceled) 
   
   
       34 . A drug mixing and delivery device, comprising:
 an outer sleeve comprising a first cavity and a second cavity, capable of receiving and engaging a conventional drug vial, separated by a flange;   an inner sleeve, connected to said outer sleeve, comprising a third cavity capable of receiving and engaging a conventional drug vial; and   a needle, connecting said outer sleeve and said inner sleeve, wherein said needle extends through said flange and said inner sleeve.   
   
   
       35 . The drug mixing and delivery device of  claim 34 , wherein said outer sleeve further comprises a collar, formed on an inner wall of said outer sleeve, comprising an annular projection, capable of engaging and securing a conventional drug vial, wherein said collar is adjacent to a circular bulging portion, formed on an inner wall of said outer sleeve, capable of engaging and securing a conventional drug vial. 
   
   
       36 . The drug mixing and delivery device of  claim 35 , wherein said annular projection has a cross-section triangular in shape and wherein an inner diameter of said flange is smaller than a diameter of said circular bulge portion. 
   
   
       37 . The drug mixing and delivery device of  claim 34 , wherein said inner sleeve is positioned between said flange and said circular bulging portion. 
   
   
       38 . The drug mixing and delivery device of  claim 34 , further comprising at least one flexible expansion joint, formed in said outer sleeve, capable of deforming said outer sleeve to engage a drug vial. 
   
   
       39 . A drug mixing and delivery device, comprising:
 an outer sleeve comprising a first cavity, capable of receiving and engaging a conventional drug vial, and a distance plate;   an inner sleeve, connected to and movable relative to said outer sleeve, comprising a second cavity, capable of receiving and engaging a conventional drug vial, and a distance piece;   a needle, connecting said outer sleeve and said inner sleeve; and   an elastic member positioned between said distance piece and said distance plate.   
   
   
       40 . The drug mixing and delivery device of  claim 39 , wherein said outer sleeve and said inner sleeve comprise retaining members for engaging with each other. 
   
   
       41 . The drug mixing and delivery device of  claim 39 , wherein said elastic member is selected from the group consisting of a spring and an elastic rubber sheath. 
   
   
       42 . The drug mixing and delivery device of  claim 39 , wherein a distal end of said needle, adjacent to said distance piece, is encircled by a protective sheath. 
   
   
       43 . The drug mixing and delivery device of  claim 39 , wherein said inner sleeve further comprises a round bulge formed on an inner wall of said inner sleeve capable of engaging and securing a conventional drug vial. 
   
   
       44 . The drug mixing and delivery device of  claim 39 , wherein the distance piece is positioned at a distal end of said inner sleeve and wherein a diameter of said distance piece is greater than a diameter of said outer sleeve. 
   
   
       45 . The drug mixing and delivery device of  claim 39 , wherein said outer sleeve further comprises expansion joints, formed on an inner wall of said outer sleeve, capable of deforming said outer sleeve to engage a drug vial. 
   
   
       46 . The drug mixing and delivery device of  claim 39 , wherein said outer sleeve further comprises channels and notches formed on an inner wall of said outer sleeve. 
   
   
       47 . The drug mixing and delivery device of  claim 39 , wherein said inner sleeve further comprising clippers capable of engaging with said channels and locking with said notches. 
   
   
       48 . A drug mixing and delivery device, comprising:
 an outer sleeve comprising:
 a first cavity, capable of receiving and engaging a conventional drug vial, 
 a movable inner support, for positioning said outer sleeve relative to an inner sleeve, and 
 a bush, comprising a movable plate, for positioning said outer sleeve relative to an inner sleeve; 
   an inner sleeve, connected to and movable relative to said outer sleeve, comprising a second cavity, capable of receiving and engaging a conventional drug vial;   a needle, connecting said outer sleeve and said inner sleeve; and   at least one elastic member for positioning said inner sleeve relative to said outer sleeve.   
   
   
       49 . The drug mixing and delivery device of  claim 48 , wherein said elastic member comprises a first elastic member positioned between said inner support and said movable plate and a second elastic member positioned between a distal end of said bush and said movable plate. 
   
   
       50 . The drug mixing and delivery device of  claim 48 , wherein said needle is fixed to said movable plate and is positioned between a thorough hole formed in said inner support and a thorough hole formed in said bush. 
   
   
       51 . The drug mixing and delivery device of  claim 48 , wherein said movable plate is confined within said bush by a collar. 
   
   
       52 . The drug mixing and delivery device of  claim 48 , wherein said inner sleeve and said outer sleeve are irremovably connected by a cap connected to said outer sleeve via a removable ripping ring. 
   
   
       53 . The drug mixing and delivery device of  claim 48 , wherein said inner sleeve further comprises an annular step or a bulge, formed on an inner wall of inner sleeve, capable of engaging and securing a conventional drug vial.